XML 109 R32.htm IDEA: XBRL DOCUMENT v3.6.0.2
INVESTMENTS (Tables)
 12 Months Ended
Dec. 31, 2016
Summary of Held-To-Maturity and Available-For-Sale Investment Securities
The following is a summary of held-to-maturity and available-for-sale investment securities as of December 31, 2016:
  
 
Held-to-maturity
 
Available-for-sale
(Dollars in thousands)
 
Amortized
cost
 
Unrecognized
gain
 
Unrecognized
loss
 
Fair
value
 
Amortized
cost
 
Unrealized
gain
 
Unrealized
loss
 
Fair
value
U.S. Treasuries
 
$
0

 
$
0

 
$
0

 
$
0

 
$
98

 
$
0

 
$
(1
)
 
$
97

Securities of U.S. government agencies and corporations
 
13,011

 
0

 
(110
)
 
12,901

 
7,056

 
0

 
(40
)
 
7,016

Mortgage-backed securities
 
679,658

 
6,119

 
(4,459
)
 
681,318

 
571,900

 
1,997

 
(5,887
)
 
568,010

Obligations of state and other political subdivisions
 
70,585

 
117

 
(1,346
)
 
69,356

 
96,934

 
1,461

 
(1,514
)
 
96,881

Asset-backed securities
 
0

 
0

 
0

 
0

 
322,708

 
517

 
(2,013
)
 
321,212

Other securities
 
0

 
0

 
0

 
0

 
46,641

 
741

 
(728
)
 
46,654

Total
 
$
763,254

 
$
6,236

 
$
(5,915
)
 
$
763,575

 
$
1,045,337

 
$
4,716

 
$
(10,183
)
 
$
1,039,870


The following is a summary of held-to-maturity and available-for-sale investment securities as of December 31, 2015:
  
 
Held-to-maturity
 
Available-for-sale
(Dollars in thousands)
 
Amortized
cost
 
Unrecognized
gain
 
Unrecognized
loss
 
Fair
value
 
Amortized
cost
 
Unrealized
gain
 
Unrealized
loss
 
Fair
value
U.S. Treasuries
 
$
0

 
$
0

 
$
0

 
$
0

 
$
98

 
$
0

 
$
(1
)
 
$
97

Securities of U.S. government agencies and corporations
 
15,486

 
121

 
0

 
15,607

 
8,183

 
157

 
0

 
8,340

Mortgage-backed securities
 
678,318

 
7,452

 
(1,999
)
 
683,771

 
775,285

 
2,708

 
(12,926
)
 
765,067

Obligations of state and other political subdivisions
 
27,646

 
338

 
(99
)
 
27,885

 
73,815

 
2,491

 
(671
)
 
75,635

Asset-backed securities
 
0

 
0

 
0

 
0

 
236,411

 
35

 
(3,445
)
 
233,001

Other securities
 
4,809

 
0

 
(121
)
 
4,688

 
109,273

 
687

 
(1,458
)
 
108,502

Total
 
$
726,259

 
$
7,911

 
$
(2,219
)
 
$
731,951

 
$
1,203,065

 
$
6,078

 
$
(18,501
)
 
$
1,190,642
Summary of Investment Securities by Estimated Maturity
The following table provides a summary of investment securities by contractual maturity as of December 31, 2016, except for mortgage-backed securities and asset-backed securities, which are shown as single totals, due to the unpredictability of the timing in principal repayments:

 
Held-to-maturity
 
Available-for-sale
(Dollars in thousands)
Amortized
cost
 
Fair
value
 
Amortized
cost
 
Fair
value
Due in one year or less
$
207

 
$
207

 
$
1,396

 
$
1,401

Due after one year through five years
3,941

 
3,945

 
13,874

 
13,824

Due after five years through ten years
3,379

 
3,377

 
17,424

 
17,653

Due after ten years
76,069

 
74,728

 
118,035

 
117,770

Mortgage-backed securities
679,658

 
681,318

 
571,900

 
568,010

Asset-backed securities
0

 
0

 
322,708

 
321,212

Total
$
763,254

 
$
763,575

 
$
1,045,337

 
$
1,039,870
Age of Gross Unrealized Losses and Associated Fair Value by Investment Category
The following tables provide the fair value and gross unrealized losses on investment securities in an unrealized loss position, aggregated by investment category and the length of time the individual securities have been in a continuous unrealized loss position:
 
 
December 31, 2016
 
 
Less than 12 months
 
12 months or more
 
Total
(Dollars in thousands)
 
Fair
value
 
Unrealized
loss
 
Fair
value
 
Unrealized
loss
 
Fair
value
 
Unrealized
loss
U.S. Treasuries
 
$
97

 
$
(1
)
 
$
0

 
$
0

 
$
97

 
$
(1
)
Securities of U.S. government agencies and corporations
 
19,917

 
(150
)
 
0

 
0

 
19,917

 
(150
)
Mortgage-backed securities
 
505,081

 
(7,703
)
 
117,211

 
(2,643
)
 
622,292

 
(10,346
)
Obligations of state and other political subdivisions
 
94,632

 
(2,710
)
 
12,023

 
(150
)
 
106,655

 
(2,860
)
Asset-backed securities
 
116,057

 
(764
)
 
92,629

 
(1,249
)
 
208,686

 
(2,013
)
Other securities
 
7,746

 
(237
)
 
21,357

 
(491
)
 
29,103

 
(728
)
Total
 
$
743,530

 
$
(11,565
)
 
$
243,220

 
$
(4,533
)
 
$
986,750

 
$
(16,098
)

 
 
December 31, 2015
 
 
Less than 12 months
 
12 months or more
 
Total
 
 
Fair
 
Unrealized
 
Fair
 
Unrealized
 
Fair
 
Unrealized
(Dollars in thousands)
 
value
 
loss
 
value
 
loss
 
value
 
loss
U.S. Treasuries
 
$
97

 
$
(1
)
 
$
0

 
$
0

 
$
97

 
$
(1
)
Mortgage-backed securities
 
500,768

 
(5,362
)
 
246,523

 
(9,563
)
 
747,291

 
(14,925
)
Obligations of state and other political subdivisions
 
972

 
(6
)
 
29,287

 
(764
)
 
30,259

 
(770
)
Asset-backed securities
 
189,066

 
(3,042
)
 
17,144

 
(403
)
 
206,210

 
(3,445
)
Other securities
 
35,656

 
(651
)
 
24,716

 
(928
)
 
60,372

 
(1,579
)
Total
 
$
726,559

 
$
(9,062
)
 
$
317,670

 
$
(11,658
)
 
$
1,044,229

 
$
(20,720
)